Python SDK's README.md refer to a non-existant repo

[iwahbe]

What happened?

When you generate a Python SDK, it contains a README.md. The README.md refers to a repo that doesn't exist, and is generally not helpful.

Example

When you dynamically bridge random, it generates README.md:

> This provider is a derived work of the [Terraform Provider](https://github.com/terraform-providers/terraform-provider-random)
> distributed under [MPL 2.0](https://www.mozilla.org/en-US/MPL/2.0/). If you encounter a bug or missing feature,
> first check the [`pulumi-random` repo](/issues); however, if that doesn't turn up anything,
> please consult the source [`terraform-provider-random` repo](https://github.com/terraform-providers/terraform-provider-random/issues).

Output of pulumi about

pulumi-terraform-provider is at v0.1.0. The Pulumi CLI is at v3.130.0.

Additional context

No response

Contributing

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